aw1cks [1] filed a deletion request for sddm-theme-aerial-git [2]: This PKGBUILD is broken - the permissions of the installed files are incorrect which stops it working. I posted the fix over a year ago and it's still not added. If this is deleted, I will make my own package.
[1] https://aur.archlinux.org/account/aw1cks/ [2] https://aur.archlinux.org/pkgbase/sddm-theme-aerial-git/